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　　wasn'tdidn'tisn't的用法各举两个例子

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2020-12-2707:24

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韩院彬

　　1.wasn't是be动词isn't的过去时,用于过去进行时.

　　如：1.hewasn'tathomeyesterday.

　　2.Iwasn'tdoingmyhomeworkyesterday,Iwasreadingbooks.

　　2.didn't是“do""does"的过去时,用于过去现在时.

　　如：1.Ididn'tgotothelibrarylastweek.

　　2.hedidn'ttakeashoweruntilhismothercameback.

　　3.isn't是一般现在式,后面一般加动词--ing形式

　　如：1.heisdancinginthegym

　　2.issheplayingfootballontheplayground?

2020-12-27 07:26:16

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